How do I make animated drool?
Use a Fluid (Liquid Domain) with

a relatively small Inflow Sphere (location: tip of tonge),
high Viscosity Strength (docs) (try Strength=5),
small Liquid FLIP Particle Radius
and can slow down the Time Scale (try=0.5 or less)

&quot;When it rains I always think of you: drip&quot;:  
Note that I only simulate up to frame 50, and the lighting makes the single drip column look like there's a break when there isn't.